Atlas IED AA100PHD Users Manual

Owner’s Manual

100W Mixer Amplifier

AA100PHD

100W Mixer Amplifier

AA100PHD

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

– 1 – AtlasSound.com

Specifications are subject to change without notice.

AA100PHD

100W Mixer Amplifier

Owner’s Manual

Table of Contents

Important Safety Instructions .................................................................................................................. 3

Introduction ............................................................................................................................................ 5

Key Features .......................................................................................................................................... 5

Applications ............................................................................................................................................ 5

Front Panel Description ........................................................................................................................... 6

Rear Panel Description ............................................................................................................................ 7

PHD Diagnostic System Test ................................................................................................................ 11

Common Amplifier Failure Conditions .................................................................................................. 11

Trouble Shooting the Fault LED ............................................................................................................ 12

How to Calculate Load Impedance ....................................................................................................... 13

Remote Level Control ........................................................................................................................... 14

Remote Input Select (RIS) ..................................................................................................................... 14

Wiring the AA100PHD .......................................................................................................................... 16

Level Control Security Cover Option .................................................................................................... 16

Block Diagram ....................................................................................................................................... 17

Specifications ........................................................................................................................................ 18

Warranty ................................................................................................................................................ 20

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

AtlasSound.com – 2 –

Owner’s Manual

AA100PHD

100W Mixer Amplifier

Important Safety Instructions

The lightning flash with arrowhead symbol within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage “ within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the product.

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this device near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other device (including amplifiers)

that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the

other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your

safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they

exit from the device.

11. Only use attachments/accessories specified by the manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the device. When a cart is used,

use caution when moving the cart/device combination to avoid injury from tip-over.

13. Unplug this device during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualified service personnel. Servicing is required when the device has been damaged in any way, such as

power-supply cord or plug is damaged, liquid has been spilled, or objects have fallen into the device, the device has been exposed

to rain or moisture, does not operate normally, or has been dropped.

15. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

Avertissement: pour réduire le risque d’incendie ou de choc électrique, ne pas exposer cet appareil sous la pluie et l’humidité.

16. The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on

apparatus.

L’appareil ne doit pas être exposé aux écoulements ou aux éclaboussures et aucun objet ne contenant de liquide, tel qu’un vase, ne

doit être placé sur l’objet.

17. The mains plug is used as a disconnect device. The mains plug of the apparatus should not be obstructed OR should be easily

accessed during intended use. To completely disconnect the power input, the mains plug of apparatus shall be disconnected from

the mains.

La prise du secteur est utilisé pour déconnecter le système. La prise du secteur ne doit pas être obstruée ou doit être facilement

accessible pendant son utilisation. Pour être complètement déconnecté de l’alimentation d’entrée, la prise doit être débranchée du

secteur.

18. This product shall be connected to a mains socket outlet with a protective earthing connection.

Cet appareil doit être connecté à une prise électrique dotée d’une mise à la terre.

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

– 3 – AtlasSound.com

Specifications are subject to change without notice.

AA100PHD

100W Mixer Amplifier

Owner’s Manual

When The Device Is In Use

• To prevent electric shock, do not remove the product cover as there are high voltage components inside. Refer all servicing to

Atlas Sound.

• Should any of the following irregularities occur during use, immediately switch off the power, disconnect the power cord from the

AC outlet and contact Atlas Sound. Do not to attempt to continue operation with the product as this may cause fire or electric shock:

• Smoke or strange smell coming from the unit.

• If the product falls or the case is damaged.

• If water or any metallic objects falls into the product.

• If the power supply cord is damaged in any way.

• If the unit is malfunctioning.

• Do not insert or drop metallic objects or flammable materials into the ventilation holes of the product's cover, as this may result in

electric shock or fire.

• Do not place any containers with liquid or metallic objects on the top of the product. If any liquid spills into the unit, fire or electric

shock may result.

• Never operate this product or touch the power supply cord during an electrical storm, electric shock may result.

• Never exceed the power rating on the product when connecting equipment. Fire and/or property damage may result.

• Operate the product only with the voltage specified on the unit. Fire and/or electric shock may result if a higher voltage is used.

• Do not modify, kink, or cut the power cord. Do not place the power cord in close proximity to heaters and do not place heavy objects

on the power cord, including the product itself, doing so may result in fire or electrical shock.

• Ensure that the safety ground terminal is connected to a proper ground. Never connect the ground to a gas pipe as a catastrophic

disaster may result.

• Be sure the installation of the product is stable, avoid slanted surfaces as the product may fall and cause

injury or property damage.

WARNING

When Installing The Product

• Plugging in or unplugging the power cord with wet hands may result in electric shock.

• Never move the unit with the power cord plugged into the wall, as damage to the power cord may result.

• When unplugging the cord from the wall, grasp the plug, NOT the cord.

• Never install this product in humid or dusty locations, nor in direct sunlight, near sources of heat, or in areas where sooty smoke or

steam are present. Fire and electric shock may result.

• Keep all sides of the unit at least 31⁄2" away from objects that may obstruct air flow to prevent the unit's internal temperature rise.

When The Product Is In Use

• Never place heavy objects on the product, causing it to fall and/or break, resulting in personal injury and property damage. In

addition, the product itself may fall and cause injury and property damage.

• Contact Atlas Sound for instructions on cleaning the inside of the unit. Large accumulations of dust inside the unit may result in heat

buildup and fire.

• Ensure that the power supply plug is securely plugged into the wall outlet. Never allow dust to accumulate on the power plug or

inside the wall outlet.

• When cleaning the unit or the unit is not to be operated for an extended period, unplug the power cord from the wall.

CAUTION

CAUTION

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

AtlasSound.com – 4 –

Owner’s Manual

AA100PHD

100W Mixer Amplifier

Introduction

Congratulations and thank you for purchasing the Atlas Sound AA100PHD mixer amplifier. This new and innovative professional grade

product has been designed from the ground up to include the important features that professional installation personnel require to

meet or exceed their customer’s expectations. Small, compact, and engineered for reliability, the Atlas Sound AA100PHD will provide

years of service and flexibility in background music and paging applications.

Key Features

• 100W Into 25V/70.7V and 4Ω Loads

• Automated Diagnostic System Test (Push Here Diagnostic)

• Two Balanced Mic/Line/Tel Inputs w/ Phantom Power

• Three Unbalanced, Summing Line Level Inputs

• Input Assignable Zone 2 Output

• Remote Level Control

• Remote Input Select (RIS)

• Preamp Out / Amp In for External Processors

• Variable Mute Sensitivity Control for Input 1

• Contact Closure Mute Terminals

• Rear Mounted DIP switch Allows Mute Receive for Inputs 2 and 3

Applications

The Atlas Sound AA100PHD is the perfect choice for distributed business paging and background music (BGM) systems, small to

medium speech privacy systems, and in applications where music on hold (MOH) plus paging is required.

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

– 5 – AtlasSound.com

Specifications are subject to change without notice.

AA100PHD

100W Mixer Amplifier

Owner’s Manual

Front Panel

2 63 4 5

17 8

1. Power Switch

This push switch (On/Off) supplies power to the mixer amplifier.

2. Power Indicator

This LED illuminates Blue when the power switch is turned On.

3. Signal Indicator

When the signal LED illuminates Green, input signals are connected to the amplifier. The Signal LED is pre the input level controls.

4. Peak Indicator

The AAPHD Series amplifier has an input signal peak limiter located between the preamp mixer stage and the power amplifier stage.

This input signal peak limiter is designed to prevent the amplifier from being over driven by excess input signals that may cause

damage to the amplifier. If the amplifier preamp stage senses excessive input signal, the peak limiter will engage reducing the signal

and the Peak LED will illuminate Red. An occasional flash of the LED is OK. If ON steady state; turn the associated level control down

until the Peak LED turns OFF. It may be necessary to reduce the signal level at the input of the amplifier.

5. Limit Indicator

This LED serves two functions:

A. PHD Test Circuit Load Fault Indicator - When testing the system using the PHD feature for proper wiring and amplifier

loading, this LED will illuminate Yellow if a fault is sensed in the audio speaker system. See “Using the PHD Load Impedance

Testing System.”

B. Excessive Current Draw Limit Indicator - Will illuminate Yellow when the amplifier is consuming excessive current. At that

point, a current limiting circuit is activated, reducing the output power to prevent damage to the amplifier. The most likely

cause for the fault is an incorrect load impedance connected to the amplifier. The LED should not come on if a proper load is

applied. If the Limit LED is illuminating, use the PHD Load Impedance test explained in the manual to help troubleshoot the

cause of the problem. Note: An occasional LED flash is okay. When LED is ON audible distortion may be heard at the speakers.

6. PHD Switch

The AAPHD Series features a patent pending Amplifier Diagnostic System. The PHD (Push Here Diagnostic) is simple to use and

very effective in testing the speaker wiring and load impedances on 70V speaker systems to assure the proper load is applied to the

amplifier. Please read the section on “Using the PHD Feature” before activating the circuit. To activate the PHD circuit a small tool with

a point will be required to access the momentary switch through the hole on the front panel. See “Using the PHD Mixer Amplifier Load

Impedance Testing System.”

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: [phone] • Fax: [phone]

AtlasSound.com – 6 –